Senior Software Engineer (AI-Assisted) - React & Node.js/Python

Altamira is a software development outsourcing company. We provide solutions that make a tangible impact on our client’s growth and productivity. With domain knowledge across product and technology development, we aim to provide cost-efficient solutions without compromising quality. We are driven to deliver the best, every single time.

Altamira service delivery teams currently span Slovakia, Ukraine, and the Middle East, and we have ambitions to expand our footprint to meet the growing demand across Europe and into our primary growth markets in the UK and the US. In terms of industry verticals, we are focused on EdTech, Fintech, eCommerce, and Pharma.

We are looking for a Senior Software Engineer (AI-Assisted) - React & Node.js/Python to join our Altamira team.

Responsibilities

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Build and maintain web applications using React (TypeScript preferred).

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Develop backend services/APIs using Node.js (Express/Fastify/Nest) and/or Python (FastAPI/Flask/Django).

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Design clean, maintainable, testable code; write solid unit/integration tests.

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Work effectively with AI coding tools:

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Use AI for scaffolding, refactoring, test generation, and debugging.

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Validate and correct AI output (security, edge cases, performance, correctness).

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Document decisions and trade-offs clearly.

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Collaborate in PR-based workflows (GitLab) and participate in code reviews.

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Contribute to architecture discussions and pragmatic technical decisions.

Core Engineering Skills

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3+ years of professional software development experience.

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Strong React experience (hooks, component patterns, state management, performance basics).

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Backend experience with Node.js and/or Python building APIs (REST; GraphQL is a plus).

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Comfort with relational databases (PostgreSQL/MySQL) and/or NoSQL (MongoDB).

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Strong fundamentals: HTTP, async programming, data modeling, error handling, logging.

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Testing experience: Jest/Vitest/RTL/Cypress (frontend) and/or pytest (backend).

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Cloud experience (Azure/AWS/GCP), Docker/Kubernetes.

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Security basics (OWASP, auth patterns, secrets management).

AI-Assisted Development

You should be able to demonstrate:

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Confident daily use of Cursor, GitHub Copilot, or equivalent (your choice).

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Prompting and iterative refinement skills (driving the tool, not being driven by it).

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Ability to spot hallucinations/bugs, correct them quickly, and explain what happened.

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Good judgment on when not to use AI output verbatim (security, correctness, style).

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Using AI to accelerate:

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Refactoring with confidence (incl. updating tests).

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Writing or improving tests.

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Tracing bugs and producing minimal reproducible fixes.

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Creating clear docs and PR descriptions.

If you’re seeking a flexible, welcoming, and professional environment, join our freelance project-based team!

We do believe that the success of altamira.ai is impossible without the success of our Talents and the success of our Clients!

Our transparent recruitment journey usually takes up to 2 weeks and includes a few stages:

• Recruiting Interview -> 30-45 min

• Technical Interview -> 1-1,5h

• Client Interview (optional) -> up to 1h

• Pre-Offer Call -> 15min

• Reference Check

• Offer

We offer:

• Competitive salary, room for development and growth.

• Possibility to work in the Bratislava and Kyiv offices or fully remotely.

• Loyal management, interesting tasks, constant support.

• Medical insurance (optional).

• English courses.

• Technical equipment providing.

• Paid vacations 20 workdays, paid sick leave, regular salary reviews;

• Flexible schedule and ability to manage your working hours;

• Support your personal growth and skills upgrading.

• The great environment inside the team, support of initiatives, and ability to contribute to the common goal.

We do believe that the success of altamira.ai is impossible without the success of our Talents and the success of our Clients!